The Pretty Committee will fall heir to the incredible secret room under Octavian Country Day School --- but only if they can bring suitable dates to eighth-grader alpha female Skye's costume party. The P.C. must win the room because it is wired to broadcast the Briarwood Boys' sensitivity training classes, in which they talk about their feelings. The room holds the key to Massie becoming a boy expert, not to mention actually gaining a clue into her own interactions with boys she is interested in. 

Massie figures that she and Claire have the date thing covered. Massie can ask Derrington; Claire can ask Cam. But they immediately run into problems. Derrington acts way too immaturely to impress Skye and her friends, while Claire finds incriminating evidence that links Cam with someone named Nikki. Another complication arises when Skye insists that Massie deliver horse-loving hottie Chris Abeley to her as Skye's date for the party. This turns into a complicated love triangle because, unknown to Skye, there is major electricity between Massie and Chris. 

When Skye commands Massie to have Chris call her so she can invite him to her party, Massie negotiates. She talks Skye into letting her have access to the secret room to watch the boys for 45 minutes twice a week. Imagine Massie's shock when Skye informs her that, unless she successfully match-makes Chris with Skye, the Pretty Committee will never have ownership of the secret room. 

Chris continues to be oblivious to Skye's charms while becoming more besotted with Massie. Before you can say "mocha suede Miu Miu clogs," Massie finds herself in an impossibly worsening predicament. Can she pull off the Chris/Skye feat, thus procuring the secret room for the Pretty Committee --- or is she doomed to lose her alpha status forever? 

As might be expected, SEALED WITH A DISS is another fast food feast of a read, peppered liberally with brand names and current teen pop references. Yet the series' savvy readers will detect a hefty kernel of nourishment under the fluff, as the girls contemplate the morality (and karma) of privacy invasion.